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Acer AL1515 Service Manual

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AL1515
Service Guide
Service guide files and updates are available on the
CSD web: for more information,
Please refer to
http://csd.acer.com.tw/
- 1 -

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  Summary of Contents for Acer AL1515

  • Page 1 AL1515 Service Guide Service guide files and updates are available on the CSD web: for more information, Please refer to http://csd.acer.com.tw/ - 1 -...
  • Page 2 Copyright Copyright © 2003 by Acer Incorporated. All rights reserved. No part of this publication may be reproduced, transmitted, transcribed, stored in a retrieval system, or translated into any language or computer language, in any form or by any means, electronic, mechanical, magnetic, optical, chemical, manual or otherwise, without the prior written permission of Acer Incorporated.
  • Page 3 DIFFERENT part number code to those given in the FRU list of this printed Service Guide. You MUST use the list provided by your regional Acer office to order FRU parts for repair and Service of customer machines.
  • Page 4 WARNING: (FOR FCC CERTIFIED MODELS) NOTE: this equipment has been tested and found to comply with the limits for a Class B digital device, pursuant to Part 15 of the FCC Rules. These limits are designed to provide reasonable protection against harmful interference in a residential installation.
  • Page 5 PRECAUTIONS Do not use the monitor near water, e.g. near a bathtub, washbowl, kitchen sink, laundry tub, Swimming pool or in a wet basement. Do not place the monitor on an unstable trolley, stand, or table. If the monitor falls, it can injure a person and cause serious damage to the appliance.
  • Page 6: Special Notes On Lcd Monitors

    SPECIAL NOTES ON LCD MONITORS The following symptoms are normal with LCD monitor and do not indicate a problem. NOTES Due to the nature of the fluorescent light, the screen may flicker during initial use. Turn off the Power Switch and then turn it on again to make sure the flicker disappears.
  • Page 7: Table Of Contents

    MAIN OSD MENU... 31 OSD MESSAGE... 33 PLUG AND PLAY ... 35 WHITE COLOR TEMPERATURE... 36 AUDIO TECHNICAL SPECIFICATION (FOR AL1515 m ONLY) ... 36 SPEAKERS ... 37 Chapter 3 Machine Disassembly and Replacement …………………………………..…………38 DISASSEMBLY PROCEDURE ... 38 Chapter 4 Troubleshooting …………………………………………………………………………..41 TROUBLESHOOTING ...
  • Page 8: Chapter 1 Monitor Feature

    Chapter 1 Monitor Feature INTRODUCTION Scope This specification defines the requirements for the 15” high resolution color LCD monitor. This monitor can be directly connected to general 15 pin D-sub VGA connector and eliminates the requirement of optional special display card. It also supports VESA DPMS power management and plug &...
  • Page 9: Electrical Requirements

    ELECTRICAL REQUIREMENTS Standard Test Conditions All tests shall be performed under the following conditions, unless otherwise specified. Ambient light : Viewing distance : Warrn up time All specifications : Fully functional : Measuring Equipment : Control settings User brightness control : User contrast control: User red/white balance, Green/white balance and...
  • Page 10: Lcd Monitor General Specification

    Sync: TTL positive or negative 15 pin Mini D type, (standard VGA video) 3.5 mm stereo audio jack (Audio) (For AL1515 m only) 0.5Wrms + 0.5Wrms (300Hz – 10kHz (S.P.L. – 10 dB))(AL1515 m only) power on/off with LED select adjustment (+,-) 24KHz --61KHz...
  • Page 11: Input Signals

    Input Signals Video input • Type • Input Impedance • Polarity • Amplitude • Display Color Sync input • Signal • Polarity Interface frequency The following frequency range is generalized by supported timing. If the entered mode does not match the supported timing the display optimization will not be assured.
  • Page 12: Supported Timing

    Supported Timing FH(KHZ) SYNC TIMING FV(HZ) POLARITY 640x350 31.469 VGA-350 70.087 – 640x400 24.83 – NEC PC9801 56.42 – 640x400 31.469 – VGA-GRAPH 70.087 640x400 31.5 – NEC PC9821 70.15 – 640x480 31.469 – VGA-480 59.94 – 640x480 37.861 – VESA-480-72Hz 72.809 –...
  • Page 13 Support Modes There will be 28 total support modes to accommodate the above mode and other video modes within the frequency range of the monitor. Video input Connector Analog Video input Connector: 15pins mini D-Sub Table 2.4.5. Pin assignment for D-sub connector PIN NO.
  • Page 14: Monitor Block Diagram

    MONITOR BLOCK DIAGRAM The LCD monitor will contain an main board, an inverter/ power board, key board and internal adapter which house the flat panel control logic, brightness control logic and DDC. The inverter board will drive the backlight of panel and the DC-DC conversion. The Adapter will provide thr 12V DC-power to inverter/ power board.
  • Page 15: Block Diagram

    BLOCK DIAGRAM System Block Diagram - 15 -...
  • Page 16: Monitor Board Layout

    Monitor board layout LABEL Component 24LC21 MV4-TL MX810TR MX10E8050IQC 24LC16B AIC 1084 APL1117 U301 LM4838 LABEL Component D-SVB 15 PIN 4300-13 4 & CN6 P-TWO AF740B40P E & T 3950-20 E & T 4500-06 CN301 SC SCJ368R1NXS0U04 CN300 E & T 4500-02 - 16 -...
  • Page 17: Software Flow Chart

    Software flow chart - 17 -...
  • Page 18: General Instructions

    Connect the video cable from the monitor to the video card. Press the power button to turn on the monitor position. The power indicator will light up. External Controls Auto Adjust Key/Exit </ Volume >/ Volume MENU/ENTER / Power Key - 18 - AL1515 m AL1515...
  • Page 19: System Installation

    Connect the power cord to an AC power source. Connecting the Audio Cable (For AL1515 m and AL1515 bm) Connect the audio cable to the " LINE OUT " jack on your PC's audio card or to the front panel's “AUDIO OUT” jack of your CD ROM drive.
  • Page 20 The step between front bezel and back cover shall be within specification. Top and Bottom Back cover & Bezel concavity 0.8mm ≤ A ≤ 1.3 mm Back Cover & Hinge Cover concavity 0mm ≤ B ≤ 0.5mm Left and Right Back cover &...
  • Page 21 Base & Neck concavity 0mm ≤ C ≤ 0.6mm Top and Bottom Back cover & Bezel step 0mm ≤ D ≤ 0.8 mm Left and Right Back cover & Bezel step 0mm ≤ D ≤ 0.8 mm - 21 -...
  • Page 22 LCD Horizontally The angle between front bezel and LCD unit in bottom side should not large than 1.0mm. The distance of the LCD display unit from left side to right should not large than 4.0mm. - 22 -...
  • Page 23: Plastic Material

    Tilt Base Rotation Tilt up 15 ± 2°/ down 5 ±2° Plastic Material For TCO99 Front Bezel PC+ABS Back Cover PC+ABS The Others ABS 94HB For MPRII Front Bezel ABS 94V-0 Back Cover ABS 94V-0 The Others ABS 94HB GAP Spec. Gap between panel with bezel is 0 mm <...
  • Page 24: Power Board

    +5V supply for logic board Ground Ground Enable signal for inverter (Low active, <1V) Brightness signal for inverter (0.5V to 3.2V) +5V supply for audio’s power (For AL1515 only) Audio ground (For AL1515 only) Comment Low voltage (common) High voltage for lamp...
  • Page 25: Electrical Specification

    Electrical Specification: AC-DC Electrical specification Input Specification Item Input Voltage Input Frequency Input Current Inrush Current Hold Up Time Turn on time Efficiency Input Power Consumption *Cold start up of Inrush Current: Power board off (keep over 1 hour) and Ta=25 degree C AC-DC Output Specification Output Voltage +5Vdc...
  • Page 26: Inverter Electrical Specification

    Protection function Auto-recovery design is acceptable, but input power must be less than 5W 1) SCP: Short circuit protection must be acted on both outputs 2) OPP: Should be protected when output power consumption is within 40W ~ 70W Inverter Electrical Specification: For Hannstar HSD 150SX84-D Input Voltage Input Current...
  • Page 27 For Hannstar HSD 150SX87- Input Voltage Input Current Backlight ON/OFF Control Brightness Adjust (Lamp Current Control) Output Voltage Brightness Output Current(Each connector) Frequency Open Lamp Voltage Striking Time Lamp Current Balance Efficiency Operating Life Time *.The open lamp voltage is testes at output connector terminal * Life time(Hr) can be defined as the time in which it continues to operate under the condition: Ta=25±3°C, I =8.0Ma(ms) and f...
  • Page 28: Safety

    For Hannstar HSD 150SX84-A4 Input Voltage Input Current Backlight ON/OFF Control Brightness Adjust (Lamp Current Control) Output Voltage Brightness Output Current(Each connector) Frequency Open Lamp Voltage Striking Time Lamp Current Balance Efficiency Operating Life Time *.The open lamp voltage is testes at output connector terminal * Life time(Hr) 1.
  • Page 29: Power Consumption

    Power Consumption The monitor is equipped with a power-management according to the below. There is a delay of 5s … 7s before the transition from On-state to any power saving state to avoid unintentionally entering of a power saving stage during display resolution and timing mode changes. Transition from any power saving state to another can be instantaneous.
  • Page 30: Chapter 2 Operating Instruction

    Chapter 2 Operating Instructions CONTROLS Control panel (monitor front panel) 1. Power ON/OFF switch, push to ON and push to OFF. (Toggle switch) 2. Power LED will be blue when monitor is on; be amber when in power saving mode. 3.
  • Page 31: Main Osd Menu

    Main OSD Menu: Outline: The description for control function : Main Menu Sub Menu Sub Menu Icon Item Icon Contrast Brightness Focus Clock H. Position V. Position Warm Cool Description Contrast from Digital-register. Backlight Adjustment Adjust Picture Phase to reduce Horizontal-Line noise Adjust picture Clock to reduce Vertical-Line noise.
  • Page 32 User / Red Red Gain from Digital-register. User / Green Green Gain Digital-register. User / Blue Blue Gain from Digital-register. English Set OSD display language to English. Set OSD display language to 繁體中文 Tranditional Chinese. Deutsch Set OSD display language to German.
  • Page 33: Osd Message

    Hot-Key Menu:(For AL1515 m only) Outline: The description for Hot-Key function : Item Operation Volume When the OSD is closed, press Left or Right button will be Volume Hot-Key Function OSD Message: Outline: The description for OSD Message : Item...
  • Page 34 LOGO: When the monitor is power on, the LOGO will be showed in the center. Item of Factory menu Vendor may customize design and add adjustment items Factory menu as far as all required items are included. 1) Bright Adjust Brightness and Contrast value to Max. 2) Auto Balance Adjust each R, G, B contrast (gain) and offset.
  • Page 35: Plug And Play

    Plug and play Plug & play DDC2B feature This monitor is equipped with VESA DDC2B capabilities according to the VESA DDC STANDARD. It allows the monitor to inform the host system of its identity and, depending on the level of DDC used, communicate additional information about its display capabilities.
  • Page 36: White Color Temperature

    6500K 0.313 User *) TCO’0X A.2.6.1 requirement User should follow “Microsoft Windows Color Quality Specification for Liquid Crystal Display OEM’s”. (http://www.microsoft.com/hwdev/tech/color/ColorTest.asp) Audio Technical specification (For AL1515 m only) General Description: Output power Total harmonic distortion Input signal sensitivity Input impedance...
  • Page 37: Speakers

    Electrical characteristics (Tamb=25°) Audio amplifier(USE Panasonic VP-7723A Audio Analyzor. ) Item Audio Input Input Voltage(V) Input Current(m A) Audio Voltage Gain 500m Vrms 1KHz Frequency Response 500m Vrms 300Hz-20KH Signal to Noise ratio 500m Vrms 1KHz Total harmonic distortion 500m Vrms 1KHz Cross talk 500m Vrms 1KHz Output Watt.
  • Page 38: Chapter 3 Machine Disassembly And Replacement

    Chapter 3 Machine Disassembly and Replacement Disassembly Procedure Disassemble the base 1. Remove the neck cover. 2. Remove the four screws to release the hinge. 3. Remove the base Disassemble the chassis 1. Remove the four screws to release the back cover. 2.
  • Page 39 Disassemble the main board 1. Disassemble audio line from power board. 2. Disassemble two VL-VK lines from VL board. 3. Disassemble power line from VL board. 4. Disassemble FPC line from VL board. 5. Remove the one screw to release line from Chassis. 6.
  • Page 40 Disassemble the speakers 1. Remove the two screws to release line and VK board from bezel. 2. Remove the two screws to release line and chassis from bezel. 3. Remove the four screws from bezel.
  • Page 41: Chapter 4 Troubleshooting

    Chapter 4 Troubleshooting Main Procedure...
  • Page 42 Power Circuit and Backlights Troubleshooting...
  • Page 43 Performance Troubleshooting...
  • Page 44 Function Troubleshooting...
  • Page 45: Chapter 5 Connector Information

    Connector Information Phonejack stereo PIN1. right : CEE22 typed connector PIN2. Left PIN3. Gnd Video input Connector Analog Video input Connector: 15pins mini D-Sub Table 2.4.5. Pin assignment for D-sub connector : Line-in receptacle PHONEJACK STEREO PIN NO. Chapter 5 Separate Sync RED VIDEO GREEN VIDEO...
  • Page 46: Chapter 6 Fru List

    FRU (Field Replaceable Unit) list This chapter gives you the FRU (Field Replaceable Unit) listing in global configurations of AL1515 m. Refer to this chapter whenever ordering for parts to repair or for RMA (Return Merchandise Authorization). NOTE : Please note WHEN ORDERING FRU PARTS, that you should check the most up-to-date information available on your regional web or channel(http://aicsl.acer.com.tw/spl/).
  • Page 47 Model: AL1515...
  • Page 48 Model:AL1515 m...
  • Page 49: Part List

    Part list Photo Vender Part No. Part Name Hinge Cover FAAR7721000 Base Assy FAAR5517000 Rear Cover FAAR551A000 Base FAAR5518000 Neck FAAR7713000 Main Shield EEAR5512000...
  • Page 50 Inverter Board Front Bezel FAAR5516000 Speaker-R CG10021V930 Speaker-L CG10021V930 Frame ECAR5511000 451AAV30001 453AAT30021...